The final assembly plant is displayed as a 1 or 2 letter
abbreviation.

Abbreviation

Final Assembly Plant

AT - A*

Atlanta, Georgia

BA - B*

Baltimore, Maryland

BF

Fremont, California

EP

Euclid, Ohio (See explanation below)

KC - K*

Kansas City, Missouri

VN

Van Nuys, California

none shown

Oshawa, Ontario Canada

Euclid, Ohio oddities

* When bodies were built at the Euclid, OH plant a single letter
designated the final assembly plant. The Euclid, Ohio Fisher Body plant built many station wagons for Chevrolet
and other GM divisions as well as El Camino bodies for Chevrolet and final assembly of the chassis and finished vehicles
were done at the more 'traditional' plants such as Atlanta, Baltimore and
Kansas City. Those destined for the Atlanta or Baltimore final assembly plant will typically
have the letter "A" or "B" directly below the body number or directly
after the style number and those destined for the Kansas City final assembly plant will have the letter "K"
stamped below the body number or after the style number on later model
year tags.

It's been found that the location final assembly plant destination letter
changed position sometime around May of 1964.